From: Michael S. Tsirkin Date: Sun, 23 Nov 2014 15:45:53 +0000 (+0200) Subject: virtio_scsi: move to uapi X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=106d81f58a5e7f41e857b8805e9d899e87d7a874;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git virtio_scsi: move to uapi Guests need to use virtio scsi API, so export it to uapi, nice to e.g. qemu and will help us remember this file affects ABI. Signed-off-by: Michael S. Tsirkin Acked-by: Paolo Bonzini --- diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h deleted file mode 100644 index af448649a975..000000000000 --- a/include/linux/virtio_scsi.h +++ /dev/null @@ -1,164 +0,0 @@ -/* - * This header is BSD licensed so anyone can use the definitions to implement - * compatible drivers/servers. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef _LINUX_VIRTIO_SCSI_H -#define _LINUX_VIRTIO_SCSI_H - -#include - -#define VIRTIO_SCSI_CDB_SIZE 32 -#define VIRTIO_SCSI_SENSE_SIZE 96 - -/* SCSI command request, followed by data-out */ -struct virtio_scsi_cmd_req { - u8 lun[8]; /* Logical Unit Number */ - __virtio64 tag; /* Command identifier */ - u8 task_attr; /* Task attribute */ - u8 prio; /* SAM command priority field */ - u8 crn; - u8 cdb[VIRTIO_SCSI_CDB_SIZE]; -} __packed; - -/* SCSI command request, followed by protection information */ -struct virtio_scsi_cmd_req_pi { - u8 lun[8]; /* Logical Unit Number */ - __virtio64 tag; /* Command identifier */ - u8 task_attr; /* Task attribute */ - u8 prio; /* SAM command priority field */ - u8 crn; - __virtio32 pi_bytesout; /* DataOUT PI Number of bytes */ - __virtio32 pi_bytesin; /* DataIN PI Number of bytes */ - u8 cdb[VIRTIO_SCSI_CDB_SIZE]; -} __packed; - -/* Response, followed by sense data and data-in */ -struct virtio_scsi_cmd_resp { - __virtio32 sense_len; /* Sense data length */ - __virtio32 resid; /* Residual bytes in data buffer */ - __virtio16 status_qualifier; /* Status qualifier */ - u8 status; /* Command completion status */ - u8 response; /* Response values */ - u8 sense[VIRTIO_SCSI_SENSE_SIZE]; -} __packed; - -/* Task Management Request */ -struct virtio_scsi_ctrl_tmf_req { - __virtio32 type; - __virtio32 subtype; - u8 lun[8]; - __virtio64 tag; -} __packed; - -struct virtio_scsi_ctrl_tmf_resp { - u8 response; -} __packed; - -/* Asynchronous notification query/subscription */ -struct virtio_scsi_ctrl_an_req { - __virtio32 type; - u8 lun[8]; - __virtio32 event_requested; -} __packed; - -struct virtio_scsi_ctrl_an_resp { - __virtio32 event_actual; - u8 response; -} __packed; - -struct virtio_scsi_event { - __virtio32 event; - u8 lun[8]; - __virtio32 reason; -} __packed; - -struct virtio_scsi_config { - u32 num_queues; - u32 seg_max; - u32 max_sectors; - u32 cmd_per_lun; - u32 event_info_size; - u32 sense_size; - u32 cdb_size; - u16 max_channel; - u16 max_target; - u32 max_lun; -} __packed; - -/* Feature Bits */ -#define VIRTIO_SCSI_F_INOUT 0 -#define VIRTIO_SCSI_F_HOTPLUG 1 -#define VIRTIO_SCSI_F_CHANGE 2 -#define VIRTIO_SCSI_F_T10_PI 3 - -/* Response codes */ -#define VIRTIO_SCSI_S_OK 0 -#define VIRTIO_SCSI_S_OVERRUN 1 -#define VIRTIO_SCSI_S_ABORTED 2 -#define VIRTIO_SCSI_S_BAD_TARGET 3 -#define VIRTIO_SCSI_S_RESET 4 -#define VIRTIO_SCSI_S_BUSY 5 -#define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6 -#define VIRTIO_SCSI_S_TARGET_FAILURE 7 -#define VIRTIO_SCSI_S_NEXUS_FAILURE 8 -#define VIRTIO_SCSI_S_FAILURE 9 -#define VIRTIO_SCSI_S_FUNCTION_SUCCEEDED 10 -#define VIRTIO_SCSI_S_FUNCTION_REJECTED 11 -#define VIRTIO_SCSI_S_INCORRECT_LUN 12 - -/* Controlq type codes. */ -#define VIRTIO_SCSI_T_TMF 0 -#define VIRTIO_SCSI_T_AN_QUERY 1 -#define VIRTIO_SCSI_T_AN_SUBSCRIBE 2 - -/* Valid TMF subtypes. */ -#define VIRTIO_SCSI_T_TMF_ABORT_TASK 0 -#define VIRTIO_SCSI_T_TMF_ABORT_TASK_SET 1 -#define VIRTIO_SCSI_T_TMF_CLEAR_ACA 2 -#define VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET 3 -#define VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET 4 -#define VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET 5 -#define VIRTIO_SCSI_T_TMF_QUERY_TASK 6 -#define VIRTIO_SCSI_T_TMF_QUERY_TASK_SET 7 - -/* Events. */ -#define VIRTIO_SCSI_T_EVENTS_MISSED 0x80000000 -#define VIRTIO_SCSI_T_NO_EVENT 0 -#define VIRTIO_SCSI_T_TRANSPORT_RESET 1 -#define VIRTIO_SCSI_T_ASYNC_NOTIFY 2 -#define VIRTIO_SCSI_T_PARAM_CHANGE 3 - -/* Reasons of transport reset event */ -#define VIRTIO_SCSI_EVT_RESET_HARD 0 -#define VIRTIO_SCSI_EVT_RESET_RESCAN 1 -#define VIRTIO_SCSI_EVT_RESET_REMOVED 2 - -#define VIRTIO_SCSI_S_SIMPLE 0 -#define VIRTIO_SCSI_S_ORDERED 1 -#define VIRTIO_SCSI_S_HEAD 2 -#define VIRTIO_SCSI_S_ACA 3 - - -#endif /* _LINUX_VIRTIO_SCSI_H */ diff --git a/include/uapi/linux/virtio_scsi.h b/include/uapi/linux/virtio_scsi.h new file mode 100644 index 000000000000..af448649a975 --- /dev/null +++ b/include/uapi/linux/virtio_scsi.h @@ -0,0 +1,164 @@ +/* + * This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _LINUX_VIRTIO_SCSI_H +#define _LINUX_VIRTIO_SCSI_H + +#include + +#define VIRTIO_SCSI_CDB_SIZE 32 +#define VIRTIO_SCSI_SENSE_SIZE 96 + +/* SCSI command request, followed by data-out */ +struct virtio_scsi_cmd_req { + u8 lun[8]; /* Logical Unit Number */ + __virtio64 tag; /* Command identifier */ + u8 task_attr; /* Task attribute */ + u8 prio; /* SAM command priority field */ + u8 crn; + u8 cdb[VIRTIO_SCSI_CDB_SIZE]; +} __packed; + +/* SCSI command request, followed by protection information */ +struct virtio_scsi_cmd_req_pi { + u8 lun[8]; /* Logical Unit Number */ + __virtio64 tag; /* Command identifier */ + u8 task_attr; /* Task attribute */ + u8 prio; /* SAM command priority field */ + u8 crn; + __virtio32 pi_bytesout; /* DataOUT PI Number of bytes */ + __virtio32 pi_bytesin; /* DataIN PI Number of bytes */ + u8 cdb[VIRTIO_SCSI_CDB_SIZE]; +} __packed; + +/* Response, followed by sense data and data-in */ +struct virtio_scsi_cmd_resp { + __virtio32 sense_len; /* Sense data length */ + __virtio32 resid; /* Residual bytes in data buffer */ + __virtio16 status_qualifier; /* Status qualifier */ + u8 status; /* Command completion status */ + u8 response; /* Response values */ + u8 sense[VIRTIO_SCSI_SENSE_SIZE]; +} __packed; + +/* Task Management Request */ +struct virtio_scsi_ctrl_tmf_req { + __virtio32 type; + __virtio32 subtype; + u8 lun[8]; + __virtio64 tag; +} __packed; + +struct virtio_scsi_ctrl_tmf_resp { + u8 response; +} __packed; + +/* Asynchronous notification query/subscription */ +struct virtio_scsi_ctrl_an_req { + __virtio32 type; + u8 lun[8]; + __virtio32 event_requested; +} __packed; + +struct virtio_scsi_ctrl_an_resp { + __virtio32 event_actual; + u8 response; +} __packed; + +struct virtio_scsi_event { + __virtio32 event; + u8 lun[8]; + __virtio32 reason; +} __packed; + +struct virtio_scsi_config { + u32 num_queues; + u32 seg_max; + u32 max_sectors; + u32 cmd_per_lun; + u32 event_info_size; + u32 sense_size; + u32 cdb_size; + u16 max_channel; + u16 max_target; + u32 max_lun; +} __packed; + +/* Feature Bits */ +#define VIRTIO_SCSI_F_INOUT 0 +#define VIRTIO_SCSI_F_HOTPLUG 1 +#define VIRTIO_SCSI_F_CHANGE 2 +#define VIRTIO_SCSI_F_T10_PI 3 + +/* Response codes */ +#define VIRTIO_SCSI_S_OK 0 +#define VIRTIO_SCSI_S_OVERRUN 1 +#define VIRTIO_SCSI_S_ABORTED 2 +#define VIRTIO_SCSI_S_BAD_TARGET 3 +#define VIRTIO_SCSI_S_RESET 4 +#define VIRTIO_SCSI_S_BUSY 5 +#define VIRTIO_SCSI_S_TRANSPORT_FAILURE 6 +#define VIRTIO_SCSI_S_TARGET_FAILURE 7 +#define VIRTIO_SCSI_S_NEXUS_FAILURE 8 +#define VIRTIO_SCSI_S_FAILURE 9 +#define VIRTIO_SCSI_S_FUNCTION_SUCCEEDED 10 +#define VIRTIO_SCSI_S_FUNCTION_REJECTED 11 +#define VIRTIO_SCSI_S_INCORRECT_LUN 12 + +/* Controlq type codes. */ +#define VIRTIO_SCSI_T_TMF 0 +#define VIRTIO_SCSI_T_AN_QUERY 1 +#define VIRTIO_SCSI_T_AN_SUBSCRIBE 2 + +/* Valid TMF subtypes. */ +#define VIRTIO_SCSI_T_TMF_ABORT_TASK 0 +#define VIRTIO_SCSI_T_TMF_ABORT_TASK_SET 1 +#define VIRTIO_SCSI_T_TMF_CLEAR_ACA 2 +#define VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET 3 +#define VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET 4 +#define VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET 5 +#define VIRTIO_SCSI_T_TMF_QUERY_TASK 6 +#define VIRTIO_SCSI_T_TMF_QUERY_TASK_SET 7 + +/* Events. */ +#define VIRTIO_SCSI_T_EVENTS_MISSED 0x80000000 +#define VIRTIO_SCSI_T_NO_EVENT 0 +#define VIRTIO_SCSI_T_TRANSPORT_RESET 1 +#define VIRTIO_SCSI_T_ASYNC_NOTIFY 2 +#define VIRTIO_SCSI_T_PARAM_CHANGE 3 + +/* Reasons of transport reset event */ +#define VIRTIO_SCSI_EVT_RESET_HARD 0 +#define VIRTIO_SCSI_EVT_RESET_RESCAN 1 +#define VIRTIO_SCSI_EVT_RESET_REMOVED 2 + +#define VIRTIO_SCSI_S_SIMPLE 0 +#define VIRTIO_SCSI_S_ORDERED 1 +#define VIRTIO_SCSI_S_HEAD 2 +#define VIRTIO_SCSI_S_ACA 3 + + +#endif /* _LINUX_VIRTIO_SCSI_H */